#B0243F#B0243F

#B0243F is a mid, vivid red. Relative luminance 0.109; OKLCH L 49.9% C 0.174 H 16.2°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#B0243F
RGB	rgb(176, 36, 63)
HSL	hsl(348, 66%, 42%)
HSV	hsv(348, 80%, 69%)
CMYK	cmyk(0%, 79.5%, 64.2%, 31%)
CIE-LAB	lab(39.33, 56.06, 20.27)
CIE-LCH	lch(39.33, 59.61, 19.87°)
OKLab	oklab(49.9% 0.1675 0.0488)
OKLCH	oklch(49.9% 0.174 16.2)
XYZ	xyz(19.4347, 10.8537, 5.7733)
Luminance	0.1085 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B0243F #24B095

analogous

#B02485 #B0243F #B04F24

triadic

#B0243F #3FB024 #243FB0

tetradic

#B0243F #85B024 #24B095 #4F24B0

square

#B0243F #85B024 #24B095 #4F24B0

split-complementary

#B0243F #24B04F #2485B0

monochromatic

#4A0F1B #7D1A2D #B0243F #D73A59 #E16D84

Accessibility & contrast

On white

6.62

#B0243F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#B0243F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B0243F

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B0243F	#FFFFFF	#000000	##FFFFFF
##B0243F	1.00	6.62	3.17	6.62
#FFFFFF	6.62	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D4A3F

Deuteranopia (green-blind)

#70673B

Tritanopia (blue-blind)

#C10030

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b0243f;
/* rgb */ color: rgb(176, 36, 63);
/* oklch */ color: oklch(49.9% 0.174 16.2);

Tailwind

colors: {
  custom: {
    50: '#cf6d73',
    500: '#b0243f',
    950: '#000000',
  },
}

SCSS

$custom: #b0243f;
$custom-light: #cf6d73;
$custom-dark: #000000;

JSON

{
  "hex": "#b0243f",
  "rgb": {
    "r": 176,
    "g": 36,
    "b": 63
  },
  "hsl": {
    "h": 348.429,
    "s": 66.038,
    "l": 41.569
  },
  "oklch": {
    "l": 0.49898,
    "c": 0.17443,
    "h": 16.2
  },
  "luminance": 0.10851
}

Semantic roles & 50–950 ramp

primary

#B0243F

secondary

#68C8B5

accent

#E9C83F

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150808

muted

#837B7B

Preview Lab

Preview with #B0243F

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →